AMOEBAEA 



219 



cysts are usually tetranucleate, but some contain as many a.s 16 

 nuclei. Amoebic abscess of the liver was reported 'in a frog. 



Entamoeba sp. Chatton. In the rectum of the newt, Triton 

 palmatus. 



Entamoeba sp. Alexeieff-. In Triton taeniatus. These two 

 forms resemble closely E. ranarum. 



Fig. 87 a, b. Trophozoite and cyst of Entamoeba ranarurn'.- X650 (After 



Mercier and Math is), 

 c, d. Trophozoite and cyst of £«f/o/i'wax na«a. XlOOO. 

 e, f. Trophozoite and cyst of E. ranarum. X500 (After Epstein and 



Ilovaisky). 

 g, h. Trophozoite and cyst of lodamoeba biitschli. XlOOO. 

 i-k. A living and two stained trophozoites of Dientamoeha fragilis. 



XI 100 (After Kudo). 



G. Entamoebae of invertebrates 



Entamoeba aulastomi Noller. In the intestine of the horse 

 leech, Aulastomum gulo. Trophozoites measure about 35 mi- 

 crons or larger. The cysts are ordinarily tetranucleate and meas- 

 ure 7 to 11 microns in diameter. 



Entamoeba minchini Mackinnon. In the intestine of the tip- 

 ulid larvae. Size 5 to 30 microns. Cysts contain Huclei up to 

 ten in number. 



Entamoeba mesnili Keilin. In the intestine of the larva of 

 the dipterous insects, Trichocera hiemalis and T. annulata. 

 Body 6 to 24 niicrons long and multinucleate. Plasmotomy. 

 The cysts 8 to 11 microns in diameter, contain two or four nu- 

 clei. 



Entamoeba apis Fantham and Porter. In Apis mellifica. 

 Somewhat- resembles E. coli. 



